Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quantas formas árabes existem para a categoria perfeita da 1ª pessoa do plural?
 ###Tabelas: CREATE TABLE national_team (national_team_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Venue VARCHAR, Score VARCHAR, Competition VARCHAR, Turkey scorers VARCHAR, Match report VARCHAR) CREATE TABLE 120_million_to_199_million_records (120_million_to_199_million_records_id AUTO_INCREMENT PRIMARY KEY, Artist VARCHAR, Country of origin VARCHAR, Period active VARCHAR, Release-year of first charted record INT, Genre VARCHAR, Claimed sales VARCHAR) CREATE TABLE triconsonantal_roots (triconsonantal_roots_id AUTO_INCREMENT PRIMARY KEY, Semitological abbreviation VARCHAR, Hebrew name VARCHAR, Arabic name VARCHAR, Morphological category VARCHAR, Hebrew Form VARCHAR, Arabic form VARCHAR, Approximate translation VARCHAR) CREATE TABLE federal_election_results (federal_election_results_id AUTO_INCREMENT PRIMARY KEY, Election INT, # of candidates nominated INT, # of seats won INT, # of total votes INT, % of popular vote VARCHAR) CREATE TABLE railway_stations_currently_in_use (railway_stations_currently_in_use_id AUTO_INCREMENT PRIMARY KEY, Station (and code) VARCHAR, Managed by VARCHAR, Lines served VARCHAR, Station users 2007/8 INT, Station users 2008/9 VARCHAR, Year opened VARCHAR, Platforms VARCHAR, Borough VARCHAR)  
SELECT COUNT Arabic form FROM triconsonantal_roots WHERE Morphological category = 1st. plur. perfect